Method and system for tracking objects in computer-assisted surgery
US9763738B2 · kind B2 · utility
2Cited by
2References
9Claims
0Family size
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Key dates
| Filing date | Mar 4, 2013 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Apr 3, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4668
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer-assisted surgery system comprises instruments adapted to be used to perform tasks related to surgery. A reference device is in a fixed relation to a bone. A rotating magnet creates a magnetic field plane, the rotating magnet being connected to one of the instrument and the reference device. A magnetometer on the other of the instrument and the reference device produces signals as a function of at least its orientation relative to the magnetic field plane. A processing unit tracks said orientation of the instrument relative to the bone using said signals from the magnetometer subjected to the magnetic field plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.